Improved oxygenating-furnace



iuitetl (gime Gnocca stuit/nn,l or PiTTsBURG, PENNSYLVANIA.

Letters Patent No. 92,120, dated June 29, 1869.

IMPROVED OXYGENATING-FURNACE.

The Schedule referred to in these Letters Patent and making part of thesame To all whom/it may conccrm' Beit known that I, GEORGE STAMM, ofPittsburg, in the county ot' Allegheny, and State of Pennsylvania, haveinvented arnew and improved Oxygenating- Furnace and I do hereby declarethat the followir'ig is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theaccompanying drawings, making a part ot' this specification, in which-Figure 1 is a perspective View.

Figure 2 is a view of the oxygenating-apparatus, detached.

Figure 3 is a section taken through line :e :n f

Figure 4 is an end view of the part shown in iig. 3, the door Z, figs. 4and 1, being open.

Figures 5, 7 represent details of construction of the part b.

.Figure 8 is a top view of pan h.

Figures 9, 10, 11, l2, represent details of construction of thegrate-bars and air-chambers.

The object of this invention is to increase the proportion of oygen inthe air that supports combustion in the furnace, and thereby to causethe gases to be consumed more thoroughly, and a greater intensity ofheat to be produced than in ordinary furnaces..

A A represent the brick side-walls of the furnace;

B, the boiler;

C, the chimney;

D, the ash-pit; andA E, the furnace-door.

e e e are tubular grate-bars, connected at their rear end with an air orsteam-chamber, d, and at -their front end with another, c, through whichis made the opening for the door E.

.b is a-large tube at the rear end of the. furnace, above and parallelto the air-chamber d, and connected to it by two short tubes m m.

During the operation of the furnace, jets of water are charged with agreater proportion otoxygen, are thrown from the tube I), through smalltubes g g, into the tire at the rear end of the furnace, and from thechamber c, through small tubes f f, into the front end of the furnace,the interior of tube b and chamber c communicating with each other,through pipes e e,

chamber d, and short tubes on m. v

-Around the tube b is a jacket, b', shown in fig. 7, and between thetube'and the jacket a water-space, r, in which the water is heatedbefore it passes into the boiler.

The water is forced into the space r th'rough a pipe, i., and from thespace to the boiler through apipe, o.

The interior tube b, represented in iig. 7, is connected at each end toa large vaporizing-chamber, a a, arranged in the brick wall A, as shownin iig. 1, the tire being in contact with the walls a al of thechambers, dg. 2, and the walls a2 a2 being imbedded the intense heat ot'the'chamber.

in the bricks A A, so that radiation from the part a is checked as muchas possible. Y

The walls ot' the chambers a a are made of metal, fire-clay, or otherrefractory material, and are preferably ofthe form shown in figs. 2 and3, expanding toward their front end, and at their rear end connected tothe part b b', by means'of an elbow, a3.

`The floor of each chamber a is inclined from the rear downward to thefront, as shown in figs. l, 3, 4, and a loose removable slide, or dattray, h, is placed thereon.

A jet or spray of water is thrown into the rear `end of the chamber,from a pipe, 7t, leading from the hydrant or pump. f

This jet or spray is partially vaporized at once by That portion of' itwhich is not vaporized falls von the `inclined tra'y It, and runs downtoward the door l, being wholly or partially converted intovapor on itspassage.

It any water collects at the .lower end of the tray, it escapes throughawastepipe, p, and is afterwards pumped into the boiler.

The oxygenated air, thus prepared inthe chambers a a, passes into thepipe b, from which a portion is thrown into the fire at g g, and theremainder 'goes into chamber d, and thence, through pipes c e, intochamber c, at each stage of its progress. becoming more highly heated,until itis finally reduced tothe condition ot'a dry gas or mixture ot'gases, in which condition it isv ejected from pipes f f into theire, asabove described, greatly increasing the intensity ot' the heat producedby the furnace.

Having thus described my invention,

That I claim as new, and desire to secure by Letters Patent, is

1. An oxygenating-furnace, constructed substantially as above described,that is to say, having the two chambers a a arranged on each side of thefire,

the chambers b d back of it, the chamber c front of it, and the 'hollowgrate-bars e e.beneath it, and commnnicating with and connecting theparts c (l, substantially vas and forthe purposes set forth.

2. In combination with the parts a b c de, all constructed and arrangedas described, the -jacket b', water-space c', and pipes t' o, arrangedand operating as and for the purposes set forth.

3. The arrangement of the inclinedl tray h, wastepipe p, and jetc', inconnection. with the chambers 'a a, as and for the purposes specified.

4. The described construction of the parts aa, as w3,- b b', when saidparts are shaped and connected together as shown and specilied, and forthe purposes set forth. i

The above specification of my invention, signed by me this 6th day 0fApril, 1869.

witnesses: GEORGE srAMM.

Ones. A. PETTIT,

